<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>上传文件</title>
</head>
<body>

<form action="/upload" method="post" enctype="multipart/form-data">
    姓名: <input type="text" name="name"><br>
    年龄: <input type="text" name="age"><br>
    头像: <input type="file" name="file"><br>
    <input type="submit" value="提交">
</form>

</body>
</html>